A 21nV/√Hz Chopper-Stabilized Multi-path Current-Feedback Instrumentation Amplifier with 2μV Offset

Conference Paper (2010)
Author(s)

Q. Fan (TU Delft - Electronic Instrumentation)

JH Huijsing (TU Delft - Electronic Instrumentation)

Kofi A.A. Makinwa (TU Delft - Electronic Instrumentation)

Research Group
Electronic Instrumentation
DOI related publication
https://doi.org/10.1109/ISSCC.2010.5434041
More Info
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Publication Year
2010
Language
English
Research Group
Electronic Instrumentation
Pages (from-to)
80-81
ISBN (print)
978-1-4244-6033-5

Abstract

This paper describes a chopper-stabilized current-feedback instrumentation amplifier (CFIA) with a ripple-reduction loop (RRL). A smooth 1 st -order response is obtained by embedding the RRL in a multipath structure to bury the notch caused by the RRL. The CFIA achieves 2 μV offset, 21 nV/√(VHz) with NEF of 9.6. The CFIA can also be configured as an opamp which achieves 2× reduction in NEF.

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